This set tests knowledge of the net products and reactants of several of the processes of metabolism and photosynthesis.

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In the presence of oxygen, the three-carbon compound pyruvate can be catabolized in the citric acid cycle. First, however, the pyruvate 1) loses a carbon, which is given off as a molecule of CO2, 2) is oxidized to form a two-carbon compound called acetate, and 3) is bonded to coenzyme A.

These three steps result in the formation of

Acetyl CoA, NADH, H+, and CO2.

How many NADH are produced by glycolysis?

2

What are the products of the citric acid cycle?

3NADH + 1ATP + 1FADH2 + 2CO2

What is the net gain of glycolysis?

2 ATP + 2NADH + 2 Pyruvate

What are the inputs into glycolysis?

Glucose + 2NAD+ +2ATP + 4ADP + 2Pi

What are the outputs from glycolysis?

2 Pyruvate + 2 NADH + 2ADP + 4 ATP

What does the electron transport chain achieve?

NADH and FADH2 are reduced releasing energy which powers an integral membrane protein which pump H+ ions from the inner membrane space into the outermembrane space causing an electrochemical gradient of H+ ions to build up (the concentration of H+ ions builds up in the outer membrane space). This contains the potential energy that drives ATPsynthase synthesis of ATP by allowing the H+ to diffuse back through the inner membrane through ATPsynthase. As H+ moves through the ATPsynthase it produces ATP. The energy in the electrochemical gradient powers ATPsynthase and the production of ATP through this process known as chemiosmosis.